VLS252010T-2R2M Equivalent & Substitute Parts

Part Overview

The VLS252010T-2R2M is a 2.2 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 1.1 A continuous current with a maximum DC resistance of 190mOhm. This component is designed for surface mount applications in the 1008 (2520 Metric) package format. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain the same inductance value, shielding characteristics, and compatible package dimensions while meeting or exceeding the electrical performance requirements.

Key Parameters

Parameter	Value
Inductance	2.2 µH
Inductance Tolerance	±20%
Current Rating	1.1 A
DC Resistance (DCR)	190mOhm Max
Shielding	Shielded
Core Material	Ferrite
Package / Case	1008 (2520 Metric)
Operating Temperature Range	-40°C ~ 105°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the VLS252010T-2R2M is determined by the following critical parameters:

Primary Criteria (Must Match):

Inductance value: 2.2 µH with ±20% tolerance
Shielding: Shielded configuration required
Mounting type: Surface mount
Package compatibility: 1008 (2520 Metric) or equivalent footprint dimensions (2.50mm L × 2.00mm W × 1.00mm H max)

Secondary Criteria (Must Meet or Exceed):

Current rating: Minimum 1.1 A
DC resistance: Maximum 190mOhm (lower values acceptable)
Operating temperature range: Minimum -40°C ~ 105°C
RoHS compliance: ROHS3 Compliant

Three substitute parts meet these criteria with varying electrical performance enhancements and core material compositions.

Parameter Comparison

Parameter	VLS252010T-2R2M (Main)	VLS252010CX-2R2M-1	PA4335.222YNLT	74438323022
Manufacturer	TDK Corporation	TDK Corporation	Pulse Electronics	Würth Elektronik
Inductance	2.2 µH	2.2 µH	2.2 µH	2.2 µH
Inductance Tolerance	±20%	±20%	±20%	±20%
Current Rating (Amps)	1.1 A	1.58 A	2.1 A	1.3 A
Current - Saturation (Isat)	1.2 A	1.51 A	2.3 A	2.5 A
DC Resistance (DCR)	190mOhm Max	126mOhm Max	102mOhm Max	176mOhm Max
Shielding	Shielded	Shielded	Shielded	Shielded
Core Type	Drum Core, Wirewound	Drum Core, Wirewound	Drum Core, Wirewound	Molded
Core Material	Ferrite	Ferrite	Iron	Metal Composite
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 125°C	-40°C ~ 125°C
Frequency - Self Resonant	—	—	36 MHz	60 MHz
Package / Case	1008 (2520 Metric)	Nonstandard (2520)	Nonstandard	1008 (2520 Metric)
Size / Dimension	0.098" L × 0.079" W (2.50mm × 2.00mm)	0.098" L × 0.079" W (2.50mm × 2.00mm)	0.106" L × 0.087" W (2.70mm × 2.20mm)	0.098" L × 0.079" W (2.50mm × 2.00mm)
Height - Seated (Max)	0.039" (1.00mm)	0.039" (1.00mm)	0.047" (1.20mm)	0.039" (1.00mm)
Product Status	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
AEC-Q200 Rated	—	—	—	Yes

Engineering Selection Recommendations

VLS252010CX-2R2M-1 (TDK Corporation - MFR Recommended)

This substitute is the manufacturer-recommended equivalent from TDK Corporation. It maintains identical inductance, tolerance, and core material (ferrite drum core wirewound) as the main part. The VLS252010CX-2R2M-1 provides improved electrical performance with 1.58 A current rating and reduced DC resistance of 126mOhm, representing a 34% improvement over the original specification. Operating temperature range remains -40°C ~ 105°C. Product status is active with ROHS3 compliance. Footprint dimensions are identical (2.50mm × 2.00mm × 1.00mm). This part is suitable for direct replacement in applications where the original VLS252010T-2R2M is specified.

PA4335.222YNLT (Pulse Electronics - Direct Manufacturer Part)

This substitute offers the highest current rating at 2.1 A with the lowest DC resistance of 102mOhm, providing superior thermal performance and reduced power dissipation. The core material is iron rather than ferrite, and the package dimensions are slightly larger (2.70mm L × 2.20mm W × 1.20mm H). Operating temperature range extends to -40°C ~ 125°C. Self-resonant frequency is specified at 36 MHz. Product status is active with ROHS3 compliance. This part is suitable for applications requiring enhanced current handling and lower losses, provided PCB layout accommodates the larger footprint.

74438323022 (Würth Elektronik - MFR Recommended)

This substitute features a molded construction with metal composite core material, differing from the wirewound drum core design of the main part. Current rating is 1.3 A with DC resistance of 176mOhm. Operating temperature range extends to -40°C ~ 125°C. Self-resonant frequency is specified at 60 MHz. Product status is active with ROHS3 compliance and AEC-Q200 automotive qualification. Footprint dimensions are identical (2.50mm × 2.00mm × 1.00mm). This part is suitable for applications requiring automotive-grade reliability and extended temperature operation.

Frequently Asked Questions (FAQ)

Q: Can VLS252010CX-2R2M-1 be used as a direct replacement for VLS252010T-2R2M?

A: Yes. Both parts are manufactured by TDK Corporation with identical inductance (2.2 µH), tolerance (±20%), shielding, and footprint dimensions (2.50mm × 2.00mm × 1.00mm). The VLS252010CX-2R2M-1 provides improved current rating (1.58 A vs 1.1 A) and lower DC resistance (126mOhm vs 190mOhm). Operating temperature range is identical (-40°C ~ 105°C). No circuit redesign is required.

Q: What are the footprint compatibility considerations for PA4335.222YNLT?

A: The PA4335.222YNLT has a larger footprint (2.70mm L × 2.20mm W × 1.20mm H) compared to the original part (2.50mm × 2.00mm × 1.00mm). PCB layout must accommodate these increased dimensions. The part is otherwise electrically compatible with identical inductance and tolerance specifications.

Q: Why does 74438323022 have a different core material?

A: The 74438323022 uses a metal composite core in a molded construction, whereas the original part uses a ferrite drum core wirewound design. Both designs achieve the same inductance value and shielding performance. The metal composite core provides extended temperature operation (-40°C ~ 125°C) and AEC-Q200 automotive qualification. Core material differences do not affect substitution eligibility when electrical parameters are met.

Q: Which substitute part has the lowest DC resistance?

A: PA4335.222YNLT has the lowest DC resistance at 102mOhm maximum, compared to 190mOhm for the original part. This represents a 46% reduction in resistance, resulting in lower power dissipation and improved thermal performance in high-current applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All three substitute parts (VLS252010CX-2R2M-1, PA4335.222YNLT, and 74438323022) are ROHS3 compliant with moisture sensitivity level 1 (unlimited). All parts meet the same environmental and regulatory requirements as the original VLS252010T-2R2M.

Q: What is the significance of AEC-Q200 rating on 74438323022?

A: AEC-Q200 is an automotive industry qualification standard. The 74438323022 meets this standard, making it suitable for automotive applications requiring enhanced reliability testing and quality assurance. The original part and other substitutes do not carry this certification.

Q: Can these parts be used interchangeably in the same circuit?

A: Yes, provided the circuit design accommodates the electrical parameter variations. All parts maintain 2.2 µH inductance with ±20% tolerance and shielded configuration. Differences in current rating, DC resistance, and operating temperature range must be evaluated against specific circuit requirements. Footprint differences for PA4335.222YNLT require PCB layout verification.

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